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  1. #13
    A useful calculator for different wheels and tyres, including offset and track can be found here:

    http://gti-vr6.net/library/engine/Sc...ldiameters.htm

    Only problem is that you'll have to convert inches to mm by multiplying by 25.4

    Edit: The track calculation here is incorrect. Track should only change when offset is changed.
    Last edited by Peterpilot; 05-02-2012 at 07:20 PM.
    "Sure itís quiet, for a diesel. But thatís like being well-behavedÖ for a murderer." - Jeremy Clarkson

  2. #14
    I also found an offset and backspace calculator:
    http://www.gtsparkplugs.com/WheelOffsetCalc.html
    "Sure itís quiet, for a diesel. But thatís like being well-behavedÖ for a murderer." - Jeremy Clarkson

  3. #15
    Senior Member adamr7's Avatar
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    Im a bit confused. Good thread though. All I know is Ive put ET20 17X8 Wheels on a 150 Prado, and they fit.
    2" King Springs, Ironman Foam Cell Shocks. 17x9 Dick Cepek wheels with 275/70/17 Maxxis Bighorn 762S. Ironman Deluxe Bullbar. Lightforce 240 XGT Lights. GME TX3100 UHF. Scanguage II. Drifta Drawers. Wetseat Covers. Toyota. Dual Battery System. MSA Seat Organiser and Table. MSA Wheel Bin. Staun Deflators. Toyota Tow Bar. Ironman Underbody Protection Plates. Waeco CF50. Performance Chip. TJM Airtec Snorkel. Sandgrabba Mats.

  4. #16
    Quote Originally Posted by adamr7 View Post
    Im a bit confused. Good thread though. All I know is Ive put ET20 17X8 Wheels on a 150 Prado, and they fit.
    The offset has increased track by just 10mm over the 150 series GXL alloy and the 1/2 inch wider rim plus 10mm wider tyres places your tyre just over 6mm closer to the UCA on the inside and just over 16mm closer to the guard on the outside.
    "Sure itís quiet, for a diesel. But thatís like being well-behavedÖ for a murderer." - Jeremy Clarkson

  5. #17
    Hi all,
    is somebody aware of a database were I can validate the data from the Rim Size & Offset Database of the factory fitted rims?
    E.g. the 120 GX /came with standard 17x6" ET15?

    I found in the past a spec database including much more details than the manufacturer spec sheets like vehicle dimensions, height, with etc.
    Not sure if it was including details like rim offset but but cant find it any more.

    It would be handy to have a printout in the car in case that a eager policeman is questioning whether you are still in the ADR compliant range of offset, tire width etc.

    Any ideas?

    Cheers
    Michael



    Quote Originally Posted by amts View Post
    The following is a listing of the wheel sizes that comes standad for the Prado; other vehicle makes with the same stud pattern; and wheels from 3rd party manufacturers. It was compiled to assist other Prado owners in wheel selection.

    The following list only includes 6 stud on 139.7mm PCD wheels. Bear in mind that some vehicle makes may have a smaller or larger centre bore and therefore will not fit on the Prado.

    To use this list successfully, you need to do the following:
    1. Look up the wheel size and offset for your current vehicle. (note: If you have a GX or Standard Prado, you can change to wider wheels. In this case, use the next model up as a point of reference.)
    2. Look down the list and find the wheel(s) with the same offset or lower.
    3. The wheel diameter and width is then up to you. There are various things to consider when choosing diameter and width, so I won't go further into this here.
    4. Make sure you double check with the tyre shop or search through Pradopoint for other members who have successfully made a swap.

    The list is currently incomplete. Please advise if you have something to add (including any corrections) and I will maintain this first post.





    Toyota Prado Standard Rims
    90 Series
    • Alloy/Steel 16x7" ET15
    • Steel 16x6" ET30
    120 Series
    • GX/Standard 17x6" ET15
    • GXL+ 17x7.5 ET30


    150 Series
    • GX 17x6.5" ET15
    • GXL 17x7.5" ET25
    • VX+ 18x7.5" ET25
    Other Vehicles with a 6-stud Pattern
    Toyota Hilux
    • 17x7.5" ET30
    Landcruiser 80

    Isuzu D-max

    Great Wall V240

    Holden Colorado


    Ford Ranger
    • 17x7.5" ET10
    Mitsubishi Pajero
    • 17x7.5" ET46
    Mitsubishi Triton
    • 17x7.5" ET38
    Nissan Patrol
    • 17x8.0" ET10


    Aftermarket Manfacturers & Rim Styles
    CSA Sniper
    • 18x8.0" ET25
    Dick Cepek Torque

    ROH Trojan
    • 17x7.5" ET30
    ROH RTX
    • 17x8.0" ET30
    Speedy Grande
    • 16x7.0" ET30
    • 17x7.5" ET10
    • 17x7.5" ET30
    Speedy Avalanche
    • 17x7.5" ET25
    Speedy Flame
    • 17x8.0" ET25


    Some fitment notes and guide:
    • A 16" rim can't fit onto a 120 due to interference with the front brake calipers. However, it can fit on the rear of the 120.
    • It is illegal to reduce the track of a vehicle. Therefore, you can't fit a 120 GXL alloy onto a 150.
    • On the 150, you can change the VX/Kakadu 18" rim to the GXL 17" rim. Speedy Avalanche 17x7.5 also fit. viewtopic.php?f=55&t=12335&start=0&st=0&sk=t&sd=a

  6. #18
    Out of control poster! MidLifeCrisis's Avatar
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    I have a simple question. Will the following fit my 120 2009 Grande:

    Dick Cepek Torques
    Dick Cepek Gun Metal 7
    (I already know Dick Cepek DC-2's wont... very annoyed.)

    Or what other rims will. Every time I find a decent wheel/rim, I find out they don't make it to fit.
    The table needs to be adjusted to say what sizes (for a 120) will fit ie 7.5 to 8, -x offset to
    -/ +ve offset etc. Kind of like a Wheel chart for dummies, except real simple as I have trouble reading the "for dummies" books.

    mlc, confused, alone and in the foetal position trying to come to grips with wheel cjhoices.....
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  7. #19
    Avid PP Poster! wooley's Avatar
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    Quote Originally Posted by MidLifeCrisis View Post
    I have a simple question. Will the following fit my 120 2009 Grande:

    Dick Cepek Torques
    Dick Cepek Gun Metal 7
    (I already know Dick Cepek DC-2's wont... very annoyed.)

    Or what other rims will. Every time I find a decent wheel/rim, I find out they don't make it to fit.
    The table needs to be adjusted to say what sizes (for a 120) will fit ie 7.5 to 8, -x offset to
    -/ +ve offset etc. Kind of like a Wheel chart for dummies, except real simple as I have trouble reading the "for dummies" books.

    mlc, confused, alone and in the foetal position trying to come to grips with wheel cjhoices.....
    The DC2's will fit... They'll just stick out 60mm further than the current wheels. You definitely won't have any clearance issues on the inside of the wheel though..
    2011 150series GXL

  8. #20
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    I'm in the same boat as MLC - all these measurements do my head in!!

    Does anyone know if the Mickey Thompson Sidebiter rims will fit?
    2004 Silver GXL 3lt 4spd Auto - ARB Bullbar, Safari Snorkel, Redarc Dual Battery System, BFG ATR, Dark Tint, IPF900XS spots, Raised Bilstein/Kings Suspension/Firestone Airbags, Autosafe Cargo Barrier, Sandgrabbers, Rola Roof Rack Stuff, Insect Screen, Dust/Wind Deflectors, Sheepskin/Black Duck Seatcovers, GME TX3510, ARB Recovery gear, ARB Awning, ARB underbonnet compressor, Allied Hammer Rims, ARB UVP, ARB Fridge, AJ Sliders

  9. #21
    Avid PP Poster! wooley's Avatar
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    Quote Originally Posted by Madkore View Post
    I'm in the same boat as MLC - all these measurements do my head in!!

    Does anyone know if the Mickey Thompson Sidebiter rims will fit?
    What size/offset are they?
    2011 150series GXL

  10. #22
    I think side bitters are 17 x 8, 0mm offset. They're the one's I want, look bloody awesome. Seen them fitted to Hilux with MTZ's.

    Cheers,
    Dusty

  11. #23
    Hey Guys....

    This might not be the right spot to post this and I'm "not" looking to do it either, but I just thought I would ask this silly question regarding 16" rims onto a 150's series.... I know about the legal side of things, but I was just "wondering" if u got the right offset 16" (more so probably a negative offset) rim as to whether is would fit on the front of the 150's series??

    The reason I ask is I found out that I can do this on my Navara Ute. That if I wanted to, I could fit 15" with a <0 offset instead of the current std 16". For example, an old 15" RFS landcruiser's rim will onto a Navara D22 and will miss the front brake calipers. So, in the same situation, say would a 80's rim with a neg offset fit onto the Prado's and still miss the caliper?

    Now, I "don't" plan to do this, but it's nice to know what options there are in case of a emergency.....
    cheers..... Rob (macca)
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    Car-2: 1993 Suzuki Vitara 4Dr (modified for Playing) Soon to be Retired
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  12. #24
    Out of control poster! amts's Avatar
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    Quote Originally Posted by groeschel View Post
    Hi all,
    is somebody aware of a database were I can validate the data from the Rim Size & Offset Database of the factory fitted rims?
    E.g. the 120 GX /came with standard 17x6" ET15?

    I found in the past a spec database including much more details than the manufacturer spec sheets like vehicle dimensions, height, with etc.
    Not sure if it was including details like rim offset but but cant find it any more.

    It would be handy to have a printout in the car in case that a eager policeman is questioning whether you are still in the ADR compliant range of offset, tire width etc.

    Any ideas?

    Cheers
    Michael
    Michael,

    If you choose to fit different size rims, you will need to keep in mind several factors:
    1. Legally, you must not exceed the track limits for your state. eg, it is illegal to reduce the track but I'm not sure how much you can increase the track by.
    2. Legally, the tyre and rim must not protrude past the body. Simple way of overcoming this is by fitting flares.
    3. Legally, the rims and tyres must not come in contact with other parts of the car.

    And to address MLC's post, there is no simple way of determining what can fit based on a range of offsets or rim widths.

    The 1st thing to look at is the offset as this will determine your wheel track. Do not go for more positive offset as that will reduce your wheel track. Go for lesser offset.

    2nd thing is to look at how much further out the outside face of the rim is compared to factory spec. To do this, you need the following equation:

    Protrusion outside face of rim = 25.4 x (Wnew - Wfactory)/2 + (OSfactory - OSnew)

    Where:
    W = rim width in inches
    OS = offset in mm
    Result of the equation is in mm

    The 3rd thing is to check clearance to the UCA. To do this, you need the following equation:
    Change of clearance to UCA = -[25.4 x (Wnew - Wfactory)/2 - (OSfactory - OSnew)]

    If result is +ve, there is an increase in clearance

    I have added the above info to the first post.
    I have created an Excel spreadsheet, so send me an email at [email protected] if you would like a copy.
    Last edited by amts; 26-05-2012 at 11:14 AM.
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